[NT] PeanutHull Local Privilege Escalation

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PeanutHull Local Privilege Escalation
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SUMMARY

<http://www.oray.net > Oray Inc. is the world's biggest DDNS (Dynamic
Domain Name Service) Provider (According to their WEBSITE). PeanutHull is
the DDNS client.

A local non-privileged user that can access the application via the system
tray, can use PeanutHull to execute commands with Local System privileges.

DETAILS

Vulnerable Systems:
* PeanutHull version 3.0 Beta 5

Immune Systems:
* PeanutHull version 3.0

The vulnerability is caused due to SYSTEM privileges are not dropped when
accessing the PeanutHull from the System Tray icon. A local non-privileged
user can access the application via the system tray and can execute
commands with Local System privileges.

Exploit:
1. Double click on the PeanutHull icon in the Taskbar to open the
PeanutHull window.
2. Click Help, click BBS
3. Type C:\ in the poped up IE Address BAR
4. Navagate to %WINDIR%\System325. click CMD.exe
6. A new command shell will open with SYSTEM privileges

Exploiting this vulnerability allows local non-privileged user to obtain
SYSTEM privilege.

Disclosure Timeline:
13.07.05 - Vendor notified via email
14.07.05 - Vendor responded that this problem will be fixed in the 3.0
final version.
20.07.05 - PeanutHull 3.0 released
20.07.05 - Public disclosure

ADDITIONAL INFORMATION

The information has been provided by <mailto:smaillist@gmail.com> Sowhat.
The original article can be found at:
<http://secway.org/advisory/AD20050720EN.txt>
http://secway.org/advisory/AD20050720EN.txt

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